AUDIO ALARM AND VOICE INTERCOMMUNICATION DEVICE

摘要

The proposed audio alarm and voice intercommunication device can be used in systems for controlling mine conveyers. The device contains a multichannel communication line, stations for voice intercommunication and signalling, an actuating unit, a unit for inputting sound-frequency signals with a switching unit, a voice intercommunication unit, a unit for controlling equipment operation modes with a switching unit, a unit for monitoring the state of the communication line. The proposed device provides signalling and voice intercommunication in carrying out works in connection with starting and maintaining conveyer equipment.